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SaketJNUSaketJNU
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ucer codes
1 parent e44526c commit 1e98e2b

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4 files changed

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4 files changed

+204
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‎ucer/4B4/Animal.java‎

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class Animal {
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// Instance variable
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String name;
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// Method to make a generic sound
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public void makeSound() {
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System.out.println("Some sound...");
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}
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// Setter for name
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public void setName(String name) {
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this.name = name;
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}
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// Getter for name
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public String getName() {
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return name;
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}
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}
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// Dog.java
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class Dog extends Animal {
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// Overriding the makeSound method
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@Override
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public void makeSound() {
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System.out.println("Bark! Bark!");
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}
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}
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// Main class
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public class Main {
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public static void main(String[] args) {
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// Create an instance of Dog
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Dog myDog = new Dog();
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// Set the dog's name
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myDog.setName("Buddy");
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// Call makeSound()
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myDog.makeSound();
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// Print the dog's name
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System.out.println("Dog's name is: " + myDog.getName());
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}
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}

‎ucer/4B4/BankOperation.java‎

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// Base class
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class BankAccount {
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protected double balance;
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public BankAccount(double initialBalance) {
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this.balance = initialBalance;
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}
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public void deposit(double amount) {
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if (amount > 0) {
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balance += amount;
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System.out.println("Deposited ₹" + amount);
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} else {
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System.out.println("Deposit amount must be positive.");
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}
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}
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public void withdraw(double amount) {
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if (amount > 0 && amount <= balance) {
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balance -= amount;
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System.out.println("Withdrew ₹" + amount);
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} else {
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System.out.println("Insufficient balance or invalid amount.");
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}
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}
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public void displayBalance() {
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System.out.println("Current Balance: ₹" + balance);
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}
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}
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// SavingsAccount subclass
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class SavingsAccount extends BankAccount {
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public SavingsAccount(double initialBalance) {
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super(initialBalance);
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}
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@Override
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public void withdraw(double amount) {
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if (balance - amount < 100) {
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System.out.println("Cannot withdraw ₹" + amount + ". Minimum balance of ₹100 required.");
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} else {
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super.withdraw(amount);
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}
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}
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}
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// CurrentAccount subclass
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class CurrentAccount extends BankAccount {
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public CurrentAccount(double initialBalance) {
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super(initialBalance);
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}
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@Override
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public void withdraw(double amount) {
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if (balance - amount < -5000) {
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System.out.println("Cannot withdraw ₹" + amount + ". Overdraft limit of ₹5000 exceeded.");
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} else {
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balance -= amount;
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System.out.println("Withdrew ₹" + amount);
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}
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}
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}
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// Main class to test accounts
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public class BankOperation{
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public static void main(String[] args) {
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System.out.println("=== Savings Account ===");
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SavingsAccount savings = new SavingsAccount(1000);
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savings.displayBalance();
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savings.withdraw(950); // Should fail due to ₹100 min balance
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savings.withdraw(800); // Should succeed
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savings.displayBalance();
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System.out.println("\n=== Current Account ===");
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CurrentAccount current = new CurrentAccount(2000);
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current.displayBalance();
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current.withdraw(6000); // Should succeed (within overdraft)
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current.withdraw(2000); // Should fail (overdraft exceeded)
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current.deposit(3000); // Deposit to reduce overdraft
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current.displayBalance();
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}
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}

‎ucer/4B4/Employee.java‎

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Employee.java
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public class Employee {
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// Attributes
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int empID;
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String empName;
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String empDesignation;
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// Constructor to initialize attributes
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public Employee(int id, String name, String designation) {
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this.empID = id;
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this.empName = name;
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this.empDesignation = designation;
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}
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// Method to display employee details
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public void displayDetails() {
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System.out.println("Employee ID: " + empID);
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System.out.println("Employee Name: " + empName);
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System.out.println("Designation: " + empDesignation);
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System.out.println("---------------------------");
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}
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// Main method to create and display employee objects
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public static void main(String[] args) {
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// Create three employee objects
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Employee emp1 = new Employee(101, "Alice Johnson", "Software Engineer");
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Employee emp2 = new Employee(102, "Bob Smith", "Project Manager");
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Employee emp3 = new Employee(103, "Charlie Brown", "QA Analyst");
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// Display details of each employee
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emp1.displayDetails();
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emp2.displayDetails();
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emp3.displayDetails();
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}
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}

‎ucer/4B4/SecondLargest.java‎

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public class SecondLargest {
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public static void main(String[] args) {
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// Check if at least two numbers are provided
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if (args.length < 2) {
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System.out.println("Please enter at least two numbers as command-line arguments.");
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return;
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}
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int[] numbers = new int[args.length];
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// Parse command line arguments to integers
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for (int i = 0; i < args.length; i++) {
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try {
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numbers[i] = Integer.parseInt(args[i]);
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} catch (NumberFormatException e) {
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System.out.println("Invalid input: " + args[i] + " is not a valid integer.");
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return;
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}
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}
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// Find the largest and second largest numbers
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int largest = Integer.MIN_VALUE;
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int secondLargest = Integer.MIN_VALUE;
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for (int num : numbers) {
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if (num > largest) {
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secondLargest = largest;
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largest = num;
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} else if (num > secondLargest && num != largest) {
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secondLargest = num;
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}
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}
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// Handle the case when all elements are the same
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if (secondLargest == Integer.MIN_VALUE) {
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System.out.println("There is no distinct second largest number.");
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} else {
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System.out.println("The second largest number is: " + secondLargest);
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}
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}
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}

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